//: strings/Immutable.java
package strings;

import static net.mindview.util.Print.*;

public class Immutable
{
    public static String upcase(String s)
    {
        return s.toUpperCase();
    }
    
    public static void main(String[] args)
    {
        String q = "howdy";
        print(q); // howdy
        String qq = upcase(q);
        print(qq); // HOWDY
        print(q); // howdy
    }
} /*
   * Output: howdy HOWDY howdy
   */// :~
